Heavy Rain, Max Payne 3, XCOM, Mass Effect Trilogy; Uncharted/Killzone/Resistance/ Godof War Series. And this is just the tip. You also have Demon Souls, 3D Dot Game Hero, GT 5, and the list goes on. Your gonna love the PS3

Sly Cooper Thieves In Time is my personal fav so far. And before anyone calls me a NOOB I actually beat all 3 Uncharted games, the first(and in a little while the second) LittleBIGPlanet, Jak and Daxter Collection(Second to Uncharted, and Uncharted second to Sly Cooper) and the first two Ratchet and Clank PS3's(Tools of Destruction and Full Frontal Assault). Collections are cool.

If you love RPG's, then you need to pick up Skyrim - you can create a character to be anything you want them to be and you can explore an open world - I 'm a new PS3 owner and I've been playing Skyrim for a little over 2 months. Also the Need for Speed series - the Most Wanted was revamped for the PS3 and it's pretty cool - Uncharted 3 is really cool too.